Donald Trump’s son in law and senior advisor, Jared Kushner, has reportedly had his White House security clearance downgraded.

Mr Kushner had been involved in “top secret” security briefings for more than a year thanks to interim clearance while background checks were completed.

But he and other White House aides will now only be to access information at the lower “secret” level, according to reports in the US.

Mr Kushner, who is married to the president’s oldest daughter Ivanka, previously had access to a daily secret intelligence report.

Ivanka Trump and Jared Kushner (REUTERS)

Chief of Staff John Kelly ordered that White House officials with interim clearances pending since before June 1, 2017, lose their access to the nation’s deepest secrets if they hadn’t received permanent clearances by last Friday.

A White House official confirmed that Mr Kelly’s order has been implemented.

However, Mr Kushner’s lawyer Abbe Lowell told Politico it would not affect his “ability to continue to do the very important work he has been assigned by the president”.

Mr Kushner, a successful real estate developer in New York, raised eyebrows when he was announced as a White House advisor due to a lack of political experience.

He was tasked with working on a Middle East peace deal and liaising with Mexico among a variety of assignments.

But problems with his background checks have triggered concerns. He was forced to re-file the national security form, obligatory for all White House employees, after it emerged he had made a number of emissions.